In this section, we analyze the puncturing parameters \({\mathcal {L}}_{n,m},\)  \({P}_{n,m}(\gamma _{\rm e},{\overline{\mathcal {L}}}_{n,m})\)  and \({P}_{n,m}\left(\gamma _{\rm e},\mathcal {L}_{n,m}\right)\)  for the proposed puncturing strategy. The puncturing parameters depend on the modulation schemes of eMBB and URLLC, and how the URLLC traffic is distributed, i.e., \(l_{n,m}\) . Without loss of generality, the average punctured eMBB symbols (the average URLLC load) is assumed to be known as it depends on the arrival rate, \(\lambda \) , of the URLLC traffic. Also, the channel error, \(P_m(\gamma _{\rm e})\) , depends on the channel and the modulation scheme. For example, the SER of eMBB under additive white Gaussian noise (AWGN) and/or Rayleigh fading with SNR per symbol \({\gamma }_{e}\)  are [1]}, [2]}:
\(P_m(\gamma _{\rm e}) \approx {\left\lbrace \begin{array}{ll}4a\, Q(\sqrt{\frac{3 {\gamma }_{e}}{m-1}}), \hspace{85.27806pt}\text{AWGN}, \\2a\, (1-b)-a^2(1-\frac{4b}{\pi }\tan ^{-1}(\frac{1}{b})), \text{Rayleigh,}\end{array}\right.}\) 
